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Memorandum
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♦
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In an autumn sun shine, many children were playing in this park.
Many of them were playing at the ground where monitoring post was
installed.
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♦
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The parking area of this park was full: when a car went out the parking area,
a new car went in shortly.
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♦
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The monitoring post at this park showed 0.116 μSv/h. (right picture).
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